Nailer section



W. L. LEEDY NAILER SECTION Oct. 30, 1951 Filed April 26. 1948 JNVENTOR. ZI a/far A. Lead A T foe/vs K Patented Oct. 30, 1951 UNITED STATES PATENT OFFICE NAILER, SECTION Walter-hLeedy, Youngstown, Ohio Application-'April- 26, 1948, Serial No.'23,287

I This invention relates to ainailersecti'on usable as a structural element and in the formation-":61? joists, 'studs'and 'the like -"employed in cbuilding constructions.

The principal objectof 'the inve'ntioniis the provision of a' nailer section usableas a "struc tural element and "capable of receiving and retaining-various sizes of nails;

A further object 'of theinvention 'is'the' p'rov-is'ion of an improved=nail'er section 'having a bearing 'face Tor covering material comparable with "that provided by corresponding wooden structural members and provided-with means'for receiving nails or other fa stening' means intransversely spaced 'areas thereofi a for-securing the covering material thereto; for example the adjacent ends 'of the'different members forming the 'cove'ring' member' may be indivi'duallysupporte'd upon and e'fiectivlysecure'd to'thenail'er section'disclosed' herein. I A still 'further object of ":the invention is the provision of a nailer section so'constructed'that its parts may be readily and economicallyseoured together.

A still further object of the invention is the provision of {a miller section formed of metal parts so arranged and constructedthat'the-nailer section is of relatively" lightweight. I The nailer section disclosedherein may be used in its basic form as applied to-'-'structural' member's toform appropriatenail'ersections thereon or it may be formed into joists, "forexample} by litilizing oppositely dispose'd pairs-of the nailer sections to form chords secured' together by appropriate web members.

With the foregoing and other objects in view which will appear as thedescription proceeds; the invention resides in the combination and an rangement of parts and inthede'tails of-construction hereinafter "described and claimed, it being understoodthat changes in the precise einbodiment of'the invention herein disclosed can be made within the "scope or what-is claimed without departing 'from the *spi'rit' of the invention.

'The' invention is 'iHustr-ated in? the accoinp anying drawing, wherein: v "Figure 1 is aperspectiveview o'fa portion'of the nailer section. V

Figure 2 is a cross 'sectional elevation-taken on line 2-2 of Figure 1. p

'Figure'3is'a cross'secti'onal view of" the-nailer section showing covering material appliedthere to and nails secured I therein.

fBy-r'eierri'ng tothe'drawin'gs Figures l 'a'nd 2in particular it will be see'n -that thc' n i e'i 56e- -.3-Glaims. (Cl. 189-87) 2 tion comprises a pair of metallic channels Ill-and I I, respectively, of different widths and assembled-with the metallic channel II lying within the metallic channel I 0 and in inverted relation withirespect thereto. The metallic'channel I0 is provided with longitudinally extending fla'nge's I2 and I3 and-the'longitudinally extending'center section of themetallic channel I0 is formed in a-continuously extending ridge I4, the exterior or bottom'of the-metallic channel I0 thereby defininga continuously formed longitudinallyextended, shallow -V-shaped groove l5. The me tallic channel I 0 is formed with oppositely disposed curving'side walls I6 and I1, respectively, which are formed on-a relatively largeradius ad jacent the flange I3 and on a relatively smaller radius adjacent the longitudinally extending ridge I 4. For example, in the diselosed former the invention therelatively larger radii are formed as one inch" radii 7 whereas the relatively smaller radii are formed as one-half inch radii.

Still referring-to Figures 1 and 2 of the drawings it will be'seenithatthe metallic'channel 'H is positioned within the metallic channel [0 in spaced relation with respect thereto and secured thereto b'y'means of a plurality of tack welds l8-I8. 'The' metallic channel is formed with inwardly converging side walls I9 -andl20,irespecti'vely, and are formed on radii-matching the radii of'the walls I6=andI1 of the metalliclchannel 10. At the'points .of junction between the inwardlylconverging side walls I9 and- ZILand-the transversely 'flatv section of the metallic channel I I relatively small radiiare formed to provide; in. efiect, oppositely disposed rollededges: 2 I and 22 which are spaced relatively closerto" the upp r* mostaportionsof the side walls l6 andll'of the metallic channel-Hlthan the remainder of the side walls wand-20 of the metallic channel :11. It will be obvious to those skilled in-the-a'rttha't both -the metallic channels H] and II -may be be seen that when a nail 21 is driven through the covering material 24 so as to engage the slot 26, it will move vertically into the slot 26 for arelatively short distance and then follow the gently sloping, inwardly converging side walls I! and 20,

respectively, of the channels l0 and-H with a small deflection from vertical. As the nail 21 is driven further into the slot 26 it will follow the relatively smaller radius defined by the lowermost portions of the side walls I! and 20, as heretofore described, and thereby be caused to curve abruptly and assume a partial U-shape, as shown, by the completely driven nail 28 in the left hand section of the nailer section illustrated in Figure 3 of the drawings. a

" The nailer section shown and described herein may be used for receiving and retaining 10, 16 or 20 penny or common nails, the spacing of the side walls I9 and 20 of the metallic channel H being determinedby the size of nail driven therein as the same are yieldably arranged in depending position with respect to the transversely flat section of the metallic channel H. When the relatively larger nails are driven they-will of necessity groove the rolled edgesZ I and 22 as they are forcibly moved into the slots 25 or 26 thus providing an initial relatively high frictional engagement between the nailer section and the nail which compares with the action of a nail being driven i created a vertical channel in the lower edges 2| or 22, which action prevents the nail from moving sidewardly out of its normal vertical plane, which action would interfere with driving the same into the nailer section. It is only after the nail has been first frictionally engaged and secondly distorted in limited degree that it enters the relatively smaller radius defined between the walls 20 and H, for example, where it is imparted a final curve which effectively clinches the nail in the nailer section, as best shown in Figure 3 of the drawings.

In order that the nailer section may operate effectively it is necessary that the metallic channel H be formed of a relatively lighter gauge metal than that of the metallic channel [0. For example, in the embodiment of the invention disclosed with the radii as hereinbefore given and adapted for use with the nail sizes hereinbefore given, the metallic channel I I should be formed of 14 gauge steel and the metallic channel in should be formed of 12 gauge steel. The criticalityof the gauge of the metal used in forming the nailer section lies in the spring like tensioning action of the inwardly converging walls 19 and 20 of the metallic channel H with respect to email b ng driven into the slots 25 or 26, particularly when nails of different sizes are employed.

It will thus be seen that a nailer section has been disclosed which incorporates several advantages over comparable structures heretofore known in the art in that primarily a driving action is obtained which closely resembles the driving action of a nail with respect to a wooden structural member in that the nail is initially frictionally held and then during its driving action. In the present invention it will be obvione that the initial holding action and guiding action contributes substantially to the successful clinching action which follows. It will be obvious to those skilled in the art that opposed pairs of the nailer sections herein disclosed may be joined in suitable web members for the formation of joists, studs and other structural elements or that the nailer section may be applied directly to existing structural shapes-a 'desired. -Having thus described myinvention, what I claim is:

1. A structural member comprising a pair of channel members one of which is upright and the other of which is inverted, the said upright channel member being wider than the inverted channel member and the inverted channel member being positioned in the area defined by the upright channel member and secured thereto at spaced intervals therealong with the web portions of the said channel members in oppositely disposed spaced relation to one another, the said inverted channel member having a transversely flat web portion, the-upright channel member having longitudinally extending outturned flanges formed on the edges thereof, the surfaces of which are aligned with the said flat web portion of the said inverted channel member to form a flat top on the structural member, the web portion of the upright channel member formed in adjacently positioned longitudinally extending shallow U-shaped troughs and the side portions of the inverted channel member being transversely inclined toward one another to define longitudinally extending curved slots between the said channel members for the reception of fasteners.

2. A structural member comprising a pair of channel members one of which is upright and the other of which is inverted, the said upright channel member being wider than the inverted channel member and the inverted channel member being positioned in the area defined by the upright channel member and secured thereto at spaced intervals therealong with the web portions of the said channel members in oppositely disposed spaced relation to oneanother, the said inverted channel memberhaving a transversely flat web portion, the upright channel member having longitudinally extending outturned flanges formed on the edges thereof, the surfaces of which are aligned with the said flat web portion of the said inverted channel member to form a fiat top on the structural member, the web and side portions of the upright channel member formed in parallel longitudinally extending U-shaped troughs, the side portions of the inverted channel member being transversely inclined toward one another to define longitudinally extending curved slots between the said channel member for the reception of fasteners.

3. A structural member comprising a pair of channel members one of which is upright and the other of which is inverted, the said upright channel member being wider than theinverted channel-member and the inverted channel member 5 being positioned in the area defined by the upright channel member and secured thereto at spaced interval therealong with the web portions of the said channel members in oppositely disposed spaced relation to one another, the said inverted channel member having a transversely flat web portion, the upright channel member having longitudinally extending outturned flanges formed on the edges thereof, the surfaces of which are aligned with the said fiat web portion of the said inverted channel member to form a flat top on the structural member, the web and side portions of the upright channel member formed in parallel longitudinally extending U-shaped troughs, the side portions of the inverted channel member being transversely inclined toward one another to define longitudinally extending curved slots between the said channel members for the reception of fasteners, the innermost ends of the side portions of the inverted channel member REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,804,452 Barton May 12, 1931 1,813,339 Clark July 7, 1931 2,029,645 Waugh Feb. 4, 1936 2,454,604 Heim Nov. 23, 1938 2,160,794 Price May 30, 1939 2,391,250 Legowik Dec. 18, 1945 

